GAMS returns unknow QCP status(13): unknown

GAMS
1

Hi, all,

I used the GAMS/Gurobi solver to solve a QCP problem, and the solver got an optimal solution. But, GAMS returns unknow QCP status(13): unknown and no solution displays.

What happened here?

By the way, I also want to mention that GAMS/Gurobi solver and GAMS/Cplexd got different objective values although they all claimed that optimal solution was found. Why did it happen?

Thanks in advance!

Kind regards,
Feifan

2

Hard to say with this little information. You might want to post the log and lst, or even the model so someone can reproduce and check what’s going on.

-Michael